And then there are pilots who 'know' better...
At one company not all that long ago, was informed by the Flight Engineer concerned, that the Captain, on noticing the light in the number one engine fire handle illuminated (and the fire bell ringing) decided, all on his own, that there was really no fire, so removed the bulbs from said fire handle, and completed the flight (across water) for the remaining four hours.
Should mention that this occured in the climb from the departure airport.
Reminds me of the old song..."all the monkies aren't in the zoo, every day you meet quite a few...."
Hogy Carmichael, circa 1934